Rooney Mara may be out of the spotlight right now as she gears up to promote her highly-anticipated movie The Girl With the Dragon Tattoo this December, but she’s still finding time to do charity work. Recently, Mara teamed up with KORA—a Los Angeles and East Africa-based jewelry company that creates pieces out of recycled objects—to promote this necklace made from recycled bone and brass (shown). KORA’s Maxandra Short and Amy Walker designed the piece, and 100% of proceeds will be donated to a charity close to Mara’s heart, Uweza, a non-profit organization dedicated to abolishing poverty in the Kibera section of Nairobi, Kenya. “I’m excited to be working with KORA to help bring attention to Uweza, an organization that does such good work and that I’m proud to be a part of,” Mara told InStyle. The necklace is available for $95 in silver or gold on KoraDesigns.com.